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Meeting Materials Science & Technology 2020
Symposium Metallurgy and Magnetism
Presentation Title Development of FeCo/MnZn Ferrite Composite by Field Assisted Sintering Technique
Author(s) Bowen Dong, Gabriel Santillan, Matthew Willard
On-Site Speaker (Planned) Bowen Dong
Abstract Scope FeCo alloys have great soft-magnetic properties, but small resistivity, which leads to eddy current losses. FeCo/MnZn ferrite composite with superexchange insulating matrix to limit the eddy current path length should be able to diminish the eddy current loss. In this study, we developed bulk composite using sol-gel synthesized core-shell structured FeCo/MnZn ferrite powders consolidated using field assisted sintering. Relative density ≥ 95 % were achieved. Using optical microscopy and scanning electron microscopy, it was found that ‘brick-and-mortar’ insulating matrix structure had been successfully achieved when the MnZn ferrite content ≥ 11.56 wt.% in the core-shell powder. Hysteresis measurements using vibrating sample magnetometry indicates a saturation magnetization of 181 Am2/kg (flux density of 1.7 T) and coercivity of 1516 A/m in compacted samples of FeCo/MnZn ferrite (11.56 wt.%) powder.


Comparative Studies on the Structure and Magnetic Properties of Mechanically Alloyed Fe40Co30Ni30 Medium-entropy Alloy in Argon and Ambient Atmospheres
Development of FeCo/MnZn Ferrite Composite by Field Assisted Sintering Technique
Effects of Steel Sensitization on Magnetic Properties Measured through MOKE Magnetometry
Exchange Coupled Ferromagnetism in Nanochessboards Obtained By Eutectoid Decomposition in the Co-Pt and Fe-Pt Systems
Improvement of the Magnetic Characteristics of Materials Due to the Formation of Unidirectional Boundaries of Ferrite during Processing in SHS Conditions
Introductory Comments: Metallurgy and Magnetism
Magnetic Performance of Gas-atomized Maraging Steel Powders
Microstructural Development and Mechanical Property Changes Due to Temper Embrittlement in HY-80 Submarine Steel
Modeling the Magnetostructural Interactions in Austenitic Steels at the Quantum Mechanical Level
Processing of Fe-Co Alloys: Past and Present
Processing of Vitreous Fe-based Wires into Nanostructured Soft Magnetic Material
Rapid Thermal Processing of Amorphous and Nanocrystalline Soft Magnetic Alloys
The Effect of Deformation of Low Alloy Steels Used in Metallurgy on Their Magnetic Characteristics
The Influence of the Microstructure Obtained After Processing in SHS Conditions on the Magnetic Characteristics of Steels

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